202040149 has 2 divisors, whose sum is σ = 202040150. Its totient is φ = 202040148.

The previous prime is 202040141. The next prime is 202040161. The reversal of 202040149 is 941040202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106977649 + 95062500 = 10343^2 + 9750^2 .

It is a cyclic number.

It is not a de Polignac number, because 202040149 - 2³ = 202040141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202040141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101020074 + 101020075.

It is an arithmetic number, because the mean of its divisors is an integer number (101020075).

Almost surely, 2^202040149 is an apocalyptic number.

It is an amenable number.

202040149 is a deficient number, since it is larger than the sum of its proper divisors (1).

202040149 is an equidigital number, since it uses as much as digits as its factorization.

202040149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 202040149 is about 14214.0827702670. The cubic root of 202040149 is about 586.7853016725.

The spelling of 202040149 in words is "two hundred two million, forty thousand, one hundred forty-nine".